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Finding the Fourth Proportional to 163,620.99, 245,404.15 and 45,304.29

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Solution

The fourth proportional to 163,620.99, 245,404.15 and 45,304.29 is: 67,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,620.99 : 245,404.15 = 45,304.29 : x
  2. Step 2: Convert to fraction form
    163,620.99/245,404.15 = 45,304.29/x
  3. Step 3: Cross multiply
    163,620.99x = 245,404.15 × 45,304.29
  4. Step 4: Simplify right side
    163,620.99x = 11,117,860,665.54
  5. Step 5: Solve for x
    x = 11,117,860,665.54/163,620.99
  6. Step 6: Final answer
    x = 67,948.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.